Messages in this thread | | | Subject | Re: [PATCH] ARM: dts: stm32: fix usart 2 & 3 pinconf to wake up with flow control | From | Alexandre TORGUE <> | Date | Thu, 11 Mar 2021 12:08:31 +0100 |
| |
Hi Valentin
On 2/11/21 12:07 PM, Valentin CARON - foss wrote: > Modify usart 2 & 3 pins to allow wake up from low power mode while the > hardware flow control is activated. UART RTS pin need to stay configure > in idle mode to receive characters in order to wake up. > > Fixes: 842ed898a757 ("ARM: dts: stm32: add usart2, usart3 and uart7 pins in stm32mp15-pinctrl") > > Signed-off-by: Valentin Caron <valentin.caron@foss.st.com> > ---
Applied on stm32-fixes.
Thanks Alex
> arch/arm/boot/dts/stm32mp15-pinctrl.dtsi | 21 ++++++++++++++++++--- > 1 file changed, 18 insertions(+), 3 deletions(-) > > diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi > index 7b4249ed1983..060baa8b7e9d 100644 > --- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi > +++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi > @@ -1891,10 +1891,15 @@ > usart2_idle_pins_c: usart2-idle-2 { > pins1 { > pinmux = <STM32_PINMUX('D', 5, ANALOG)>, /* USART2_TX */ > - <STM32_PINMUX('D', 4, ANALOG)>, /* USART2_RTS */ > <STM32_PINMUX('D', 3, ANALOG)>; /* USART2_CTS_NSS */ > }; > pins2 { > + pinmux = <STM32_PINMUX('D', 4, AF7)>; /* USART2_RTS */ > + bias-disable; > + drive-push-pull; > + slew-rate = <3>; > + }; > + pins3 { > pinmux = <STM32_PINMUX('D', 6, AF7)>; /* USART2_RX */ > bias-disable; > }; > @@ -1940,10 +1945,15 @@ > usart3_idle_pins_b: usart3-idle-1 { > pins1 { > pinmux = <STM32_PINMUX('B', 10, ANALOG)>, /* USART3_TX */ > - <STM32_PINMUX('G', 8, ANALOG)>, /* USART3_RTS */ > <STM32_PINMUX('I', 10, ANALOG)>; /* USART3_CTS_NSS */ > }; > pins2 { > + pinmux = <STM32_PINMUX('G', 8, AF8)>; /* USART3_RTS */ > + bias-disable; > + drive-push-pull; > + slew-rate = <0>; > + }; > + pins3 { > pinmux = <STM32_PINMUX('B', 12, AF8)>; /* USART3_RX */ > bias-disable; > }; > @@ -1976,10 +1986,15 @@ > usart3_idle_pins_c: usart3-idle-2 { > pins1 { > pinmux = <STM32_PINMUX('B', 10, ANALOG)>, /* USART3_TX */ > - <STM32_PINMUX('G', 8, ANALOG)>, /* USART3_RTS */ > <STM32_PINMUX('B', 13, ANALOG)>; /* USART3_CTS_NSS */ > }; > pins2 { > + pinmux = <STM32_PINMUX('G', 8, AF8)>; /* USART3_RTS */ > + bias-disable; > + drive-push-pull; > + slew-rate = <0>; > + }; > + pins3 { > pinmux = <STM32_PINMUX('B', 12, AF8)>; /* USART3_RX */ > bias-disable; > }; >
| |